Malicious PDF — malware analysis report

Static analysis result for SHA-256 e09fdcae9f2589b8…

MALICIOUS

PDF

64.7 KB Created: 2020-12-21 21:45:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 6a601fbb298b7b2e77e8341a66687a09 SHA-1: 79bd5ae8a48678e04b2510d11c0acf7476405b67 SHA-256: e09fdcae9f2589b8fe20ed331da8a09ab35ef59b9924d50467fde8dd8666e835
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by multiple heuristics, including a critical alert for a redirector link to known malicious infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL points to 'traffmen.ru', which is a known redirector. While no scripts were extracted, the PDF structure and the presence of a malicious URL strongly suggest an attempt to lure the user to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://traffmen.ru/strik?utm_term=mystery+valley+golf+course+phone+number In PDF document text
    • https://cdn-cms.f-static.net/uploads/4505820/normal_5fb32a1128a95.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385004/normal_5f9f213e1bd55.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383446/normal_5fa5b06f9e9b0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386839/normal_5f91ae37d21d5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381762/normal_5fd63799e435d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba4b5db2-5086-4c29-bcbe-844c04da0dbe/xofutimutonulapis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28f24dc0-a935-432a-bef9-d6b5982b0c83/vowapotitixigamogi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20c9f06b-2d74-4f22-a536-9d694c203691/93253730418.pdfIn PDF document text
    • https://s3.amazonaws.com/fizaxo/75106769753.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf4e349ee0f32b874a1f91/1606372916513/plural_form_of_word_prognosis.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e940bd14ff0dd29cb4d3/t/5fc13ccecb3e0f57717c9044/1606499534812/53764547282.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc287be084698658e68a4f0/t/5fcd56685177ea328cd2ca4c/1607292522104/roblox_ice_cream_van_simulator_codes_2019.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0f028f9866f3fd2d48e87/t/5fc9e090ec1d586fb38f654e/1607065744404/3145046921.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fdc9faf0a190b16b315c206/t/5fdceb31323bc476dd33354d/1608313656110/vikejaru.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c0f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0F0 5736 bytes
SHA-256: 19f11df89b1423d2ec7baec7eaaa220bee9f174506e5fad05b113faf8ef3b316
font_01_sfnt_off0000d46f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD46F 9840 bytes
SHA-256: f9ada8f373a31fbfb41a4248ef0e3495fc9c8ab006e68a2d51feb53a168b98b5

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